Needing help with check engine Evap leak

[Deplorable23]

I have a 2015 ram 1500 3.6 v6 flex fuel and it blew P0456 which is a small evap leak detected. Any info would help please

 

[Rlaf75]

EVAP codes can be very difficult to repair without the proper equipment to do so. With that said, I'd start with checking the rubber seal on the gas cap and make sure it isnt dry rotted and cracked. If it looks sketchy then replace it with a factory cap then clear the code(s) and see if it comes back on. Dont know if you do or not but do not gas up your vehicle while the engine is running. Replace the cap, clear the codes and drive it as normal a d see if the light comes back on

 

[DILLIGAF]

smoke machine. push it thru teh system and look for leaks

 

[G-Ride990]

Is the truck running or starting strangely?

For me P0456 caused my truck to crank a lot before starting when the fuel tank was below half. Tach Tech a Mopar tech on the forum here instantly knew it was an EVAP purge solenoid.

If you are having a similar issue, I would start there. If not, like these guys said, it is really difficult to diagnose EVAP system issues remotely or without the proper equipment.

 

[Deplorable23]

I dont let it get below half a tank but it starts just fine no issues

 

[GTyankee]

Gas cap check for bad gasket & oxidation at the top of the fill tube

the 2nd possibility is the

Vapor Canister Purge Valve MOPAR 4627831AA fits 13-15 Ram 1500 3.6L-V6​

4627831AB - Purge Control Valve 2013-2024 Ram | Mopar Factory Parts

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[Deplorable23]

Ended up swapping the PCV assembly out and code hasn't returned thank you